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an object is 09 m away from a particular lens the lens produces an image of that object 30 cm on the other side of the
a soldier pushes a crate of boxes mass 120kg with a force155n parallel to the tarmac the boxes move up the ramp of a
the normal boiling point of c2cl3f3 is 476 degrees celsius and its molar enthalpy of vaporization is 2749 kjmol what is
a calculate the angular momentum of a solid uniform sphere with a radius of 0130m and a mass of 140kg if it is rotating
a person has a far point of 21 cm this means that the personrsquos corrective lenses should produce an image 21 cm in
the rate constant of a first-order reaction is 460x10-4 at 415c if the activation energy is 104 kjmol calculate the
in a 20- intense cycling race a cyclist can loses 39 of water through perspiration estimate how much heat the cyclist
rank the following elements in order of increasing ionization energy and increasing atomic size p o
the zygomatic bone in the upper part of the cheek can be fractured by a 900-n force lasting 60 ms or longer a hockey
write the short-hand and long-hand electron configuration for each of the following ions for each ion identify another
14- solid titanium oxide tio2 reacts with solid carbon c to produce solid titanium ti and gaseous carbon monoxide co
a cable is connected at point a 123 and pulls towards point b 77-1 the force in the cable is 100 poundsa express the
according to a report on traumatic brain injury the force that a professional boxers fist exerts on his opponents head
find the electric field at the point 2000 the electric field e kqd2 where q is the charge of the source point k is the
what mass of o2 in grams is required for complete combustion of 255 g of ch4 what is the total mass of product expected
the rules of tennis specify that the 057-kg ball must bounce to a height of between 53 and 58 inches when dropped from
1 suppose current is flowing in a wire from right to left which way do the electrons in the wire move- right to left-
a 12 kg- hammer strikes a nail at a velocity of 85ms and comes to rest in a time interval of 77 ms what is the impulse
how many g of ethanol do i need to burn in excess oxygen in order to recover 50 g of water if the reaction has 75
a 10-kg copper rod rests on 2 horizontal rails 10 m apart and carries a current of 50 a from 1 rail to the otherthe
what is the yield of the combustion of methane if we recover 50 g of water from the reaction of 100 g of methane with
suppose the pasco track is 120 cm long assume the track is frictionless and suppose one end is lifted by 255 cmpart a
if the distance between the first and tenth maxima of a double slit pattern is 42mm and the slits are separated by
calculate the empirical formula for the following compound potassium tartrate found in baking powder 208 k 27 h 255 c
a certain type of propeller blade can be modeled as a thin uniform bar 250m long and of mass 260kg that is free to